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Finding the Fourth Proportional to 14,679,947.20, 22,019,920.80 and 6,176,891.20

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Solution

The fourth proportional to 14,679,947.20, 22,019,920.80 and 6,176,891.20 is: 9,265,336.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,679,947.20 : 22,019,920.80 = 6,176,891.20 : x
  2. Step 2: Convert to fraction form
    14,679,947.20/22,019,920.80 = 6,176,891.20/x
  3. Step 3: Cross multiply
    14,679,947.20x = 22,019,920.80 × 6,176,891.20
  4. Step 4: Simplify right side
    14,679,947.20x = 136,014,655,014,216.97
  5. Step 5: Solve for x
    x = 136,014,655,014,216.97/14,679,947.20
  6. Step 6: Final answer
    x = 9,265,336.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.